Endless Sphere

Silly question maybe, but can a normal chain take that kind of torque?

Haha, I'm not worried, I saw how quickly you were able to put together an absolutely awesome motor, so I completely trust your ability to do it again! My only concern was for you not to get too distracted so you could be back on track with a new motor version asap! Note that, even if you use a corel...

Is there any advantage for you to go for a coreless motor? Aside from being lighter, which I guess doesn't matter so much on your build since your motor is inboard, what would be the advantage? I'm not really familiar with these motors, so correct me if I'm wrong, but I assume these have much less t...

600A :shock: that must be on your 250 clone? I should buy one of those, they look pretty good! It's not on my motorbike, mine is limited by the controller to "only" 210 Amps battery. It's on a friend's bike I've helped building. But yes, I also have this very same BMS on my motorbike and it works r...

If you want a non permanent solution to mount your coils, maybe something like this could work? motor idea Part Studio 1 - Google Chrome.jpg Just two metal rods going through the cores, and 2 screws at the end so they stay in place (I didn't drew the screws but I guess you get the idea). It might sl...

just give the cable lots of slack Rotated a few turns the withe nut and...voila! We were right, now running freely with the wheel up the ground, it gives me 26 km/h. The marker never passed above 22 before! Still don't know how to adjust/tune it right. This is not like in a bike, and also it's all ...

Ampacity choices are 50A/80A/100A/120A How can it withstand 600A? No idea where you got these choices values, but I have the 300A version. See here: https://www.aliexpress.com/item/32826820690.html It is marketed at 300A but you can put much higher values in the firmware. We got it working at 600A ...

Heres the predicament: -Cheap BMSs are scary, quality boards cost $$$$ -I couldn't find a simple monitor/equalizer that would bleed off high cells as well as notify me when any cell reached 3.2v (they all trip at ~2.5v for what ive found). This would be used with a low current 84v pack charger. -Ba...

I will wait till tomorrow, till my 150A bluetooth BMS will arrive.. Today I got a notification it is already here in Holland.. Does anybody now it? Difficult? Yes, I have the 300A version, which is about the same. It'a a really great BMS for the price, easy to install but a bit difficult to set up ...

Nice job on your BMS replacement :) Was it a programmable BMS btw or just a "dumb" BMS? If it's programmable then you will need to check that the settings are correct in the firmware. Just a remark you might want to consider, it is very possible that your BMS was "only" a 60A for a very good reason....

Can it be an out of tune break? I do not know how to tune it perfectly, but I start to thing the problem might be here.</r> scoot.jpg Of course it can be that, it's one of the most common reasons people see their range decreasing. A deflated tire is also an other very common cause, or even a bad be...

Thanks Amberwolf... I do have the motor connected to the BMS output (P-). Which is easy, because there is no C-... B- on one side and P- on the other. WEll... in going to collect an answer to your second question (what is the spike current when the motor turns on, which was 30 amps) there were spar...

My bike needs 33mm/385mm front forks, same as Yamaha BWs/Zuma 125. I was thinking of something like these which offer two levels of adjustment: https://www.aliexpress.com/item/32816562992.html?spm=a2g0s.8937460.0.0.75992e0e70l2u1 I had these ones: https://www.aliexpress.com/item/32819425382.html?sp...

Front brake upgrade is on my winter project list. The issue is whether I keep the existing mediocre forks and get a 260mm rotor + custom rim-to-rotor adapter, + caliper + matching bracket, or go for a complete set of new forks with matching brakes (which are much more expensive of course). My 2 cen...

This is good information but not exactly what I am experiencing -- basically if I move the throttle even minutely, the motor engages. And it doesn't matter where on the (cheap, Chinese, Hall) throttle curve I have the throttle. For example, I cannot do any slow-speed maneuvers. And on a bumpy roads...

The frame on your mpcnc is neat. Probably wouldn't work for routing though. (I need a smaller desktop router, that I can enclose - like my old momus, so I'm less limited in hours it can run - another side project lol). I have a 24in² MPCNC. Nice, a fellow MPCNCer! My setup actually works ok for rou...

Amazing project, congratulations!
That's exactly the kind of stuff I wish I can build someday. Just need some space and save some money... Hopefully that time will come!

Again, bravo and keep up the updates!

Guess that depends on your slicer and jerk settings. I've got the heavy Titan aero with volcano and fullsize not pancake stepper. I've got 2 huge steppers that push the same filament together at the same time through the nozzle. Those are the biggest ones I could find for this format. They can push...

The last thing I put together with long arms like your laptop stand I was able to half the arm diameters by adding holes down the length on the horizontal axis. Took more than half the material out, dropped print time radically and supported more than double weight that was a struggle with the orig...

I was curious if I could build something to support my own weight. Semi sketched out as a center section of a kick scooter add fork mount to one side swingarm to other (simplified pretty sure I'd need to bring the swingarm support back a ways). 500mmx 200mm center section, if I could support my wei...

Yay, a new build of alex_2d !! It looks awesome, as always! Just a suggestion: make sure you make some tests with your clamping system on the carbon rods. They usually don't really like to be compressed (they tend to delaminate after some time). That thing will be insane, I can't wait to see the fir...

I'm not sure, what's supposed to be the purpose of this frame? Do you have any picture of the print itself? I'm fairly certain it is possible to build a very solid frame for a scooter/motorcycle out of a plastic 3D printer using filament... But you really need to overbuild it. Lattice structures lik...

Wow, that swingarm is absolutely insane. To be honest I don't really like the way it looks once installed on the bike (too beefy for my taste), but it is definitely incredible and very well made. Totally awesome. As for your battery, if I understand correctly 900Wh/72V=12.Ah, this is really on the l...

Really nice bike, I love the front part and the rear wheel. The frame shape is really well suited too. You should really consider ditching the SLA batteries and go for lithium, it would be much lighter, more powerful,a lot more compact and would probably allow you to get an even better look since yo...

That sounds like you have a short circuit somewhere.

Could you post a few pictures so we can have a better understanding of what's going on?